BK57 Pulley 7/8" Bore Metric K1 Attachments This R8-ZZ ball bearing is

This R8-ZZ ball bearing is a high-precision premium quality shielded deep groove 1/2"x1-1/8"x0

This 100B16 sprocket is a durable

This 35BS72 sprocket features a 1-1/4" finished bore including a key-way and two setscrews

50BS44 1" Finished Bore Sprocket Dimensions

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BK57 Pulley 7/8" Bore Metric K1 Attachments This R8-ZZ ball bearing isThis BK57 Pulley 7 8" bore is directly interchangeable with other manufacturers, is 5. 45" in diameter, and is manufactured in accordance with ARPM Standard IP20 for safe operation. It works with belt sizes A, 4L, B, 5L, AX, BX, AA, and BB. What separates this BK57 pulley from the others is that it is made using a high grade 35 cast iron, is phosphate coated, painted, and balanced at the factory. Using the grade 35 cast iron offers a higher tensile